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Data Engineering
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Where can we use Broadcast variable?

Prototype998
New Contributor III

best situations where we can use broadcast variables ?

1 ACCEPTED SOLUTION

Accepted Solutions

Rishabh-Pandey
Esteemed Contributor

hey @Punit Chauhanโ€‹ 

BV are used in the same way for RDD, DataFrame, and Dataset.

When you run a Spark RDD, DataFrame jobs that has the Broadcast variables defined and used, Spark does the following.

  • Spark breaks the job into stages that have distributed shuffling and actions are executed with in the stage.
  • Later Stages are also broken into tasks
  • Spark BV the common data (reusable) needed by tasks within each stage.
  • The BV data is cache in serialized format and deserialized before executing each task.

Rishabh Pandey

View solution in original post

1 REPLY 1

Rishabh-Pandey
Esteemed Contributor

hey @Punit Chauhanโ€‹ 

BV are used in the same way for RDD, DataFrame, and Dataset.

When you run a Spark RDD, DataFrame jobs that has the Broadcast variables defined and used, Spark does the following.

  • Spark breaks the job into stages that have distributed shuffling and actions are executed with in the stage.
  • Later Stages are also broken into tasks
  • Spark BV the common data (reusable) needed by tasks within each stage.
  • The BV data is cache in serialized format and deserialized before executing each task.

Rishabh Pandey

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